Trolley.



No. 602,009. Patented Nov. 20, |900;

f F. A. MEBmQK.

TROLLEY.

(Application led Jan, 18, 1900.)

(N0 Model.)

WlT/VESSES NVENTOH QMS Nro/mfr.

TH: :mums 51ans co, wmauwn, WASHINGTON. o, c.

'lUNrTEn STATES ATENT FRANK A. MERRICK, or JonNsrowN, PENNSYLVANIA, AssioNoR rro THE LoRAIN STEEL COMPANY, oF PENNSYLVANIA.

TROLLEY.

SPECIFICATION forming part of Letters Patent No. 662,009, dated November 20, 1900.

Application filed January 18, 1900. Serial No. 1,882. (No model.)

To @ZZ whom Lt may concern: fork in which it is hung, and C is.the fixed Be it known that I, FRANK A. MERRIOK, of shaft or spindle secured in the harp or fork Johnstown, in the county of Cambria and and upon which the wheel is journaled. State of Pennsylvania, have invented a new The contact device consists in a radial'pin 55 and usefullmprovementin Trolleys, of which or stud D, seated in an aperture in one of the following is a full, clear, and exact dethe'hubs @,withitsinnerend bearing against scription, reference being had to the accomthe shaft or spindle C, and a spring-arm E, panying drawings, which form a part of this carrying said pin orstud and fixed at one end specification. tol the periphery7 of the hub b v its natural 6o 1o My invention has relation to certain new spring clamping action by brazing, riveting,

and useful improvements in trolleys and is or otherwise. Said arm is of good conductdesigned to provide means of simple, effecting metal and is formed with a loop c to give ive, practical, and durable character for mainit a spring action of sufficient strength to at taining constant electrical control between all times maintain the pin in contact with the 65 the trolley-wheel and the shaft or spindle shaft or spindle C, notwithstandingvibration upon which it rotates to prevent destructive or play of the wheel. The spring may, how-v arcing and sparking due to momentary sepaever, be of various forms. For instance, in ration of the bearing-surfaces of the wheel Fig. 4 I have shown it as being of volute and spindle by reason ofthe vibrations or play form encircling the hub a, and many other 7o zo of said wheel. Itis also designed to provide modifications may be made. One of the dea device of this character which can be readvices may, if desired, be applied to each hub. ily applied and used in connection with stand- Inasmuch as the contact between the wheel ard constructions of trolley wheels and harps; and spindle is made at the surface of the latalso, a device in which the wear of contacting ter and but a short distance from the axis of 75 parts is reduced to a minimum and which rotation, the wear on the pi'n is reduced to a can be readily removed from the wheel and minimum, and as the pin can be made of conreplaced when worn to such an extentas to be siderable length to provide for wear the denolonger useful; also, to provide a device Vice is one of great durability. It is also which is so located as to be protected from thoroughly protected by its location from any 8o 3o the action of stray arcs. arcing which may occur between the wheel With these objects in View my invention and the overhead conductor. consists of a contact device secured to the As aboveindicated, Ido not wishto limit wheel or its hub and maintained in constant myself to the particular construction herein contact with the wheel shaft or spindle by a shown and described, as various moditica- 85 spring, which also connects it to said wheel tions may be made.

or hub. One or more of these devices may Having thus described myinvention, what be used on each wheel. I claim, and desire to secure by Letters Pat- The invention also consists in the novel ent, isconstruction and combination of parts, all as l. In a trolley, the combination with a trol- 9o 4o hereinafter described, and pointed out in the ley-wheel, and a shaft or spindle upon which appended claims, reference being had to the it rotates, of a spring-pressed contact device accompanying drawings, in whichsecured to said wheel and engaging the shaft Figure l1 is a side view of a trolley harp or spindle through the hub of the wheel. and wheel, showing my invention applied 2. In atrolley,thecombination with a trol- 95 thereto. Fig. 2 is an end view of the wheel ley-wheel, and ashaft or spindle upon which and contact device removed from the harp. it rotates, of a radial pin seated in the hub of Fig. 3 is a detail view of the contact device said wheel and contacting with the shaft or detached, and Fig. 4 is a similar view showspindle, and a spring secured to the wheel ing a modified form of t-he same. and carrying said pin. roo 5o The letter A designates the trolley-Wheel, 3. In a trolley, the combination with a trolhaving the hub portions a. B is the harp or ley-wheel, and a shaft or spindle upon which it rotates, of a radially-movable contact device seated in the hub of the wheel and bearing upon the said shaft or spindle, and a spring secured to the Wheel and maintaining the bearing of said device.

4. In a trolley, the combina tion with a trolley-wheel, and the fixed shaft or spindle upon which it rotates, of a radial pin seated in the hub of said Wheel and contacting with the hub or spindle, and a bent spring-arm carrying said pin at one end, and secured to the periphery of the hub at its opposite end.

5. The combination with a trolley-wheel having a projecting hub and a shaft or spindle for said wheel, of a spring secured to the 

